AN50R V-mod question

[eshbach]

i attempted to do the vmod by soldering a wire with a TEK SMC clip to the resistor and using a wire with a spade end placed under a mounting screw to ground it, but when turn on the power supply i only get the green Power light not the amber vdimm light, so i never turn it on because i figure something is shorting out. This is the smallest SM clip i've ever used and i don't know if smaller ones even exist, so is the clip just too big or does the vdimm light never come on after the mod is done? any suggestions? i don't have a solder station, so i don't think i can do the mod without using a clip.

[k|ngp|n]

Make sure you have it on the right pin. I went by quad damag'e pic's at 3dmaxx.net. They were wrong and I got the same thing...no amber light, no boot. You should be on the second pin from the left(6) on the bottom row looking at the mobo rightside up. Pin (7) is the third leg over, and of course the wrong one.

[eshbach]

this is what i was doing, is this wrong:

edit: upon looking at my own picture, i realize i'm a moron... thanks for clearing that up, now i can try again

[eshbach]

wow, that's a relief, i was beginning to think i wouldn't be able to v-mod this bh-5... about the core mod, you use a 20k VR, but the vr-zone guide says 10k (IIRC) and i bought a 10k for it already, so do i need to go get a 20k instead?

[kakaroto]

Originally posted by MickeyMouse
lol 10k is way to snall IMO when i used a 20k and had it set to 10k i was seeing 1.9v in bios with auto set or 1.5v so a .4v+ jump so use at least 20k

Does someone know where the measure point is for the Vdimm on the AN50R?
I can't found it with my probe....

[JNav89GT]

in bios
that's where I read mine
alot easier than the K8NPro

[kakaroto]

Originally posted by JNav89GT
in bios
that's where I read mine
alot easier than the K8NPro

Is that accurate?? So there is no mosfet where you can measure??

On the K8N pro there was a mosfet for vdimm

[EmineM]

Mickey why didnt you solder the third pin to where you mount the screws like Bowman did?

[Signal0101]

Question of the uneducated......



Where does the other end of the vdimm go to??? VR and then Ground? The second pic with the yellow line is connected on one end only. Sorry for the stupid q.

[unrealneo]

Originally posted by Signal0101
Question of the uneducated......



Where does the other end of the vdimm go to??? VR and then Ground? The second pic with the yellow line is connected on one end only. Sorry for the stupid q.

anything that's grounded.

[eshbach]

yay, v-mod success. tops right now 1:1 is 257 2-2-2-5 on 3.2v. i'll do some benching and then give it 3.4 and see how that goes.

[kakaroto]

Originally posted by eshbach
yay, v-mod success. tops right now 1:1 is 257 2-2-2-5 on 3.2v. i'll do some benching and then give it 3.4 and see how that goes.

Me 2, vcore and vdimm mod works perfect.

257MHz 3.2v nice

[Burner Man]

Originally posted by MickeyMouse
lol 10k is way to snall IMO when i used a 20k and had it set to 10k i was seeing 1.9v in bios with auto set or 1.5v so a .4v+ jump so use at least 20k

hi mickey! i've just a question....
i've noticed that giga and shuttle have the same chip for the vcore mod... this is the ISL6559CB.
why, if you ask the vcore mod for the giga, they tell you to put a 100k VR on the pin10 and for the same mod on the same chip on a shuttle, they tell you to put a 20k VR?
isn't some strange?

should not it be equal for both the mobos?

let me know...

thanks

Alex

[eshbach]

not so responsive above 3.2v, 266 1:1 2-2-2-5 3.4v is my best so far... just about 4mhz until i get something i can work with (think 270x9 1:1 3dmark)...